[Lazarus] visual component form guidelines

[Mattias Gaertner]

On Sat, 26 Oct 2013 12:44:59 -0700
BTree Computing Services <btreecs at gmail.com> wrote:

> In the Lazarus GUI, when components are placed on a form, vertical and
> horizontal design guidelines are drawn to assist in aligning the
> component relative to other components.  These lines are like 'laser
> lines' that shoot out from the edges.  Does anyone know how that
> technique is done or the source code so that I can implement a similar
> technique in my app?

designer/controlselection.pp

procedure TControlSelection.DrawGuideLines


Mattias